Additional meeting and call-related features and issues within Microsoft Teams for business
Dear afelsch
Good day!
Thank you for posting to Microsoft Community. We are glad to assist!
Based on your description, I understand you concern with to create breakout rooms before the start of the meeting as a Co-Organizer.
I do apologize for the inconvenience, but in Microsoft Teams, only the meeting organizer has the ability to set up breakout rooms before the meeting starts. Co-organizers can manage breakout rooms during the meeting, but they cannot create or configure them in advance.
To create breakout rooms, you must be a meeting organizer or a presenter in the meeting organizer's organization who's been appointed a breakout rooms manager.
If you have other questions, please feel free to let me know, I will continue to assist you.
Thanks for your precious time and your understanding would be highly appreciated. Have a nice day!
Best regards,
Allen | Community Moderator